Kourtney Kardashian wept over rumours Scott Disick had cheated.

The 36-year-old reality star ended her relationship with the 32-year-old model back in July and in a forthcoming episode of 'Keeping Up With The Kardashians', viewers will witness the mother of three's heartache.

In a clip of the E! series, Kourtney is seen confiding in her sister Kim as she wipes away tears.

She says: ''I've worked so hard to keep this family together.''

Two months agos photos emerged of Scott cosying up to his ex-girlfriend Chloe Bartoli in Monaco which prompted Kourtney to cut ties with the father of her children, Mason, five, Penelope, three, and nine-month-old Reign, after nine years together.

In the episode, Kris Jenner can be seen sitting at the table with a tearful courtney and Kim and she gets angry when reading the story of Scott's romance online.

She says: ''What a piece of s**t!''

Despite Scott, 32, missing his family, he is not prepared to change his partying ways.

A source said: ''Scott misses his family, but it's not enough to motivate him to change. He doesn't have the constitution to cure himself of his issues.''